| Image Thumbs | |
| Cert Num | 1333492 |
| Cert Date | 2017-07-19 |
| Catalog Number | 639 |
| Country | USA |
| Year | 1927 |
| Denom | 7c |
| Color | Black |
| Grade | F 70 |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, lower left margin Plate No. 19238 block of four with gum disturbances. |
| Cert Link | http://psestamp.com/Cert/1333492 |